Media Player: Recreating Deleted Auto Playlists (9.00.00.3075)

I seem to have deleted my auto playlists (e.g., Favorites--4 and 5 star rated, Music tracks I dislike), which Windows Media Player automatically creates.

Whenever I click on one of these auto playlists in W.M.P., I receive this error message: "Windows Media Player cannot finds the specified file. Be sure the path is typed correctly. If it is, the file does not exist at this specified location, or the computer where the file is stored is offline."

I'm certain these files were not on the network, since I vaguely recall deleting them from my hard drive--somewhere. Any ideas how to recreate them? Thanks.